This allele from IMPC was generated at Medical Research Council Harwell by injecting CAS9 Protein and 4 guide sequences GCCAGAATGCGAACACCTCCAGG, CCAGAATGCGAACACCTCCAGGC, GGTTTATCTCTCGCTTGTCTGGG, AGGTTTATCTCTCGCTTGTCTGG, which resulted in an intragenic deletion. (J:237616)